You could already build spotify into your apps with libspotify. Unfortunately it's a bit hamstrung from a business perspective as the TOS states you can't use i

You could already build spotify into your apps with libspotify. Unfortunately it's a bit hamstrung from a business perspective as the TOS states you can't use it in an app that actually makes money. http://developer.spotify.com/en/libspotify/overview/ http://developer.spotify.com/en/libspotify/overview/